Gas-pressure regulator.



No. 7l3,496. Patented Nov. II, I902.

.F. .1. ooT.

GAS PRESSURE REGULATOR.

(Application filed June 24,1901.)

(No Model.)

' 1.2 16 J7 gf J y 7 TNE Noam PETERS c0, mo'ro-urnu. WASHINGTON, o. c

UNITED STATES PATENT OFFICE.

FRANK JARED ROOT, OF BINGHAMTON, NEW YORK.

GAS-PRESSURE REGULATOR.

SEECIFICATIQN forming part of Letters Patent No. 713,496, dated November11, 1902.

Application filed June 24,1901. Serial No. 65,745. (No modelJ I To allwhmn it 772/67] concern:

Be it known that I, FRANK JARED Roor, a citizen of the United States,residing at Binghamton, New York, have made certain new and usefulImprovements in Gas-Pressure Regulators, of which the following is afull, clear, and exact description.

My invention relates to fluid-pressure regulators, and more particularlyto gas-pressure regulators for regulating and controlling the tension ofgases.

My invention further relates to a gas-tension regulator operated bysteam, compressed air, or other gasor vapor, wherein the automaticityapplies to the control of the tension of the gas and also to anyvariation of pressure in the operating medium, whether the sameis steamorother gas or vapor. Furthermore, my invention operates as an automaticregulation of the ad mixture of gases or vapors where the gas to becontrolled is mixed with the gas the pressure of which is employed tocontrol the gas-tension.

A specified adaptation of my invention is shown in a joint applicationof myself and W. S. Brandt, filed June 24, 1901, Serial No. 62,755,wherein this device is employed in the production of pyroligneous acid.The process therein shown would I lack in effectiveness were not adevice of this character employed.

In the following description of my invention I shall show a typicaladaptation of the same wherein a gas is to, be controlled as to tensionand is to be mixed as drawn off with a specified amount of steam. Suchdescription will illustrate the operation of my invention, and at thesame time serve to indicate its adaptation to analogous uses.

Referring to the drawings herewith, in which like characters ofreference indicate like parts, Figure 1 is an elevation in perspective.Fig. 2 is a detail section of my steam-injector. Fig. 3 is a detailelevation of my chain-adjuster.

The principal parts of my device are as follows:

1 is a gas-supply pipe.

2 is a steam-supply pipe.

3 is a closed tank.

4 is a tank open at the top, carryinga float 5.

6 is a pipe connecting the bottoms of the tanks 3 and 4.

' 1 through the pipe 7.

7 is a pipe connecting the gas-supply pipe 1 with the top of the tank 3.

S isa hand-valve in the steam-supply pipe 2.

9 is a balanced-valve on the steam-pipe 2.

10 is an exit-pipe for the gas and steam.

11 is a steam-jet exhauster interposed between the gas-supply pipe 1 andthe exit-pipe 12 is a chain or cable provided with an adjuster17,connecting the balanced-valve 9 with the float 5.

The operation of the device is as follows: Vent having been given to thetank 3 by uncoupling the pipe 7, sufficient water or other liquid ispoured into the tank 4 to half fill the tanks 3 and 4. The two tanksbeing set upon the same plane, the liquid will come to a common level byflowing through the pipe 6, so that each tank is filled half full. Thevent of the pipe 7 is then closed, the float 5 put in place, the chainor cable 12 properly adjusted, and the device is ready for operation.The hand-valve 8 is opened to give the maximum supply of steam. Theexhauster 11 at once reduces the gas-tension in the pipe 1, which bringsthe tension of the air in the top of the tank 3 to the same as that inpipe This causes the Water to rise in tank 3 and fall in tank 4 bypassing through the piped, due to atmospheric pressure, until thedifference of level is, say, six inches-that is, the water rising threeinches above the common level in tank 3 and falling three inches belowthe common level in tank 4. This results in the float 5 falling anddrawing the cable 12 over the pulleys 13, thus raising the weighted armof the balanced valve 9 and throttling the steam in the pipe 10. Thefloat 5 is held in position and rendered easy in action by having atubular guide 14, which takes over a fixed central rod 15, and the cable12 has its pulleys mounted upon a bracket 16, which is secured to thetank 4. This throttling 0f the steam-supply tends to allow thegas-tension in the pipe 1 (and consequently in the tank 3) to rise, withthe result that water is driven back by gravity into tank 4, thusraising the float 5 and giving the balanced valve freedom to supply agreater vol u me of steam to the exhauster 11, which will down to thepredetermined regulation, a regulation attained in the ordinary Waybyregulation of the hand-valve 8.

In Fig. 2 I have shown the ordinary steamjet exhauster which I employ,which I find well adapted to the requirements of this apparatus.

In Fig. 3 I have shown my chain-adjuster, which consists of an ordinaryturnbuckle provided with a milled nut 18, by means of which the chain orcable may be adjusted. The use of this adjuster makes it possible tomake a proper adjustment of the balanced valve action Without a changeof level of water in the tanks. From this it is evident that the balanceis most delicate. The water-level acts as a dilferential between thegas-tension and the outside air and responds quickly and automaticallyto any change of gas-tension or any change of steam-pressure. Hence anyincrease or decrease of gas-supply creating the tension is not only metwith reference to the tension, but also with reference to the quantityof steam mixed with it, thus auto-,

matically regulating the gas-tension and the admixture. On the otherhand, any variation of steam-pressure is met both with reference to thegas-tension produced and the admixture.

It will be evident that any desired vapor or gas may be used in place ofthe steam, and it will also be evident that in place of a steamjetexhaust where the steam is mixed with the gas I may use the steam orother supply of pressure to operate any well-known device-such, forexample, as a pump or ex haust-fanto control the gas-tension, and Itherefore do not desire to limit myself to the specific form ofexhauster shown or to a device where the steam or other supply ofpressure is mixed with the gas.

Having thus described my invention and its method of operation, what Iclaim is- 1. In combination with a gas-supply and a steam -supply, anexhauster, a balanced valve, or other valve, governing said ex-'hauster, a closed tank for holding a body of water connected above itswater-line with the gas-supply, an open tank, a float therein, a pipeconnecting the two tanks below the water-line, and means for connectingsaid float and said balanced valve whereby variations in thegas-pressure cause variations in the water-levels in said tanks andthereby said float operates said valve, substantially as shown anddescribed.

2. A gas-pressure regulator comprising a gas-supply, an exit-pipe and asteam-supply, an exhauster and a balanced, or other, valve governing thesame,a closed tank and an open tank partially filled with water andconnected below their water-line, a pipe connecting the air-space of theclosed tank with the gas-supply, a float in said open tank, a chain orcable connecting it with the balanced valve, said water in said tanksacting as a difierential between the gas-tension and the steampressureand governed by the pressure of the atmosphere, substantially as and forthe purposes set forth.

3. A pressure-regulator comprising a gassupply and a steam-supply, anexit-pipe for .the steam and gas, an exhauster discharging into same, abalanced valve on the steamsupply, a closed tank connected above itswater-line with the gas-supply, an open tank, a float therein, a pipeconnecting said tanks below the water-line, said tanks being set at acommon level and partially filled with water, or other liquid, and meansfor connecting said float and said balanced valve whereby variations inthe gas-pressure cause variations in the water-levels in said tanks andthereby said float operates said valve, substantially as and for thepurposes set forth.

In witness whereof I have hereunto set my hand, in the presence of twowitnesses, this 19th day of June, 1901.

. FRANK JARED ROOT. Witnesses:

W. S. .MONETT, H. O. COLLIER.

